What is the name of the most radioactive isotope on the planet?

Rad 226

Uranus 235

Polonium 210

plutonium 244

210Po is extremely toxic, with one microgram being enough to kill the average adult (250,000 times more toxic than hydrogen cyanide by weight). 210Po was used to kill Russian dissident and ex-FSB officer Alexander V. Litvinenko in 2006.

wikimedia wikipedia → Polonium

chemical elementschemistryisotopesphysicsradioactivity

Chemical elements quiz Physics quiz Chemistry quiz

You will play as

Answers by country

Switzerland

11%

72%

11%

Greece

11%

64%

17%

Australia

11%

60%

22%

the United States

29%

39%

25%

Austria

11%

19%

38%

30%

Ghana

18%

36%

45%

Germany

16%

19%

32%

30%

189

India

32%

30%

27%

150

Nigeria

35%

29%

26%

Poland

13%

37%

27%

20%

1954

Pakistan

45%

27%

the United Kingdom

13%

29%

15%

39%

the Netherlands

33%

58%

Canada

20%

60%

Does the candle burn more or less violently in zero gravity?

What color is octopus blood?

What is the main difference between Coca-Cola sold in the US, and the Coca-Cola sold in the EU?

What color is potassium permanganate in a strongly alkaline environment?